I'm a little confused. Are you trying to see if the cpu is sinking the 3.3v ?
The reason for FLAGS0 bouncing around is the mcu resetting the dsp several times before deciding it's not working and throwing a DSP error. This I can prove with a scope probe on Reset and one on FLAGS0.
The resistor is an 0201 if I didn't have a microscope it wouldn't be visible.
There is voltage on the FLAGS0 pin in standby. There is no voltage present on the ic itself. There also is no voltage on this pin at the mcu with R7923 removed.
I've measured the same voltage at some other pins on the DSP and some go to other ic's which also have no standby power. Not done tracing it out yet but there is some standby power leaking into this part of the circuit.
With R7923 removed I now have 0v at the mcu in standby and on. At TP1 I have 1.35v in standby and 3.3v when powered on. (?) Diagnostics now indicate FIRM ERROR with ^DSP 00.00 and ALSO ^GUI 00.00 ! (?)
Have not yet removed the other resistors let me know first if you think this indicates something as I have a few things to take care of before I can get back to this.
Think of R7924 as a drain in your sink. Many logic lines, when working with swinging voltages need to drain off the voltage quickly for the next cycle. Otherwise there could be residual voltage left on the line.
So when R7923 was removed, the DSP FLAG0 line had no drain. So even when supply voltages were gone, that line still had residual voltage on it. Cpu still had a drain.
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